Efficient meta-heuristics based on various dominance criteria for a single-machine bi-criteria scheduling problem with rejection

In this paper, we try to fill in the gap between theory and practice in production scheduling by defining a new term as “rejection” and treating the corresponding scheduling problem with multi-objective optimization approach. We study a bi-objective single machine scheduling problem with rejection. At the beginning of scheduling time horizon, scheduler needs to decide which job shall be rejected due to the resource constraints regarding two objective functions: minimization of total weighted completion time of accepted jobs and total rejection penalty of rejected jobs. We develop different algorithms to find the best estimation of Pareto-optimal front for this problem. In order to improve the quality of the solutions, on the one hand, and facilitate the process of selecting best solution for the final decision maker, on the other hand, we integrate various dominance criteria into our proposed algorithms. Finally we compare the performance of those methods by testing on a large set of instances and highlight the advantages and weak points of each one.     

基于"服务礼仪"课程提升高职学生关键能力的实践性教学探究

文章从高职生关键能力和高职实践性教育的现状出发,以"服务礼仪"课程为例,阐述了实践性教学对培养、提升高职生关键能力的作用和意义,并就如何通过有效的实践性教学提升学生的关键能力进行了思考和建议.     

市场营销专业实践教学体系构建中的难点探析

构建市场营销专业实践教学体系是增强营销专业学生学习主动性,培养学生综合能力和创新精神的重要途径。目前,我国高校市场营销专业实践教学流于形式,对实践教学体系的研究和实际运作缺乏系统性和有效性,这种状况在一定程度上制约了高素质应用型营销人才的培养。为此,本文从五个方面就如何提高我国高校营销专业实践教学的有效性提出了相应的对策。     

《理论物理导论》教学改革的探索与实践

文章论述了《理论物理导论》课程建设和改革中,教学内容、教学方法和教学手段改革的思路和措施。通过课程内容的整合,体现应用开发人才的培养特色;通过改革传统的教学方法和教学手段,实现教学模式的创新和教学手段的多样化。实践证明,《理论物理导论》教学改革提高了教学质量,培养了学生自主学习、勇于创新的能力,保证了教学目标的实现。     

Exploring the structure of a neuropsychological battery across healthy elders and those with questionable dementia and Alzheimer's disease.

An exploratory factor analysis (EFA) and a series of confirmatory factor analyses were conducted on 17 variables designed to assess different cognitive abilities in a sample of healthy older adults. In the EFA, 4 factors emerged corresponding to language, memory, processing speed, and fluid ability constructs. The results of the confirmatory factor analyses suggested that a 5-factor model with an additional Attention factor improved the fit. The invariance of the 5-factor model was examined across 3 groups: a group of cognitively healthy older adults, a group of patients diagnosed with questionable dementia (QD), and a group of patients diagnosed with probable Alzheimer's disease (AD). Results of the invariance analysis suggest that the model may have configural invariance across the 3 groups but not metric invariance. Specifically, preliminary analyses suggest that the memory construct may represent something different in the QD and AD groups as compared to the healthy older adult group, consistent with the underlying pathology in early AD. (PsycINFO Database Record (c) 2010 APA, all rights reserved)     

涤棉比例对吸湿快干织物导湿性的影响

为了研究Cooltech 吸湿快干低弹网络涤丝和棉纱交织时其搭配比例对织物性能的影响,以Cooltech 吸湿快干低弹网络涤丝作为经纱,改变纬纱中涤棉投纬比例和改变纬纱细度,获得阿大系列的织物试样,通过毛细效应和水滴扩散试验测试其吸湿导湿性,并探讨影响织物吸湿导湿性能的因素.试验结果表明:Cooltech的毛细效应和水滴扩散性都比棉好,在Cooltech与棉交织的织物中,织物的吸湿导湿性能随着棉比例的增加而呈线性下降趋势.     

Lawrence M. Stolurow (1918–2009).

Lawrence M. Stolurow died at home in La Jolla, California, on August 14, 2009, at the age of 91. He was professor of education and director of the Center for Educational Experimentation, Development, and Evaluation at the University of Iowa from 1977 to 1989, when he became emeritus professor. Previously, Stolurow held positions at the University of Pittsburgh (1947–1953), the University of Illinois at Urbana–Champaign (1953–1966), Harvard University (1966 –1971), and the State University of New York (SUNY) at Stony Brook (1971–1977). He was born in St. Paul, Minnesota, on August 3, 1918, the son of Ruth M. and Peter J. Stolurow. During his long academic career, Stolurow made many contributions to learning theory and research, the study of individual differences in abilities and mental retardation, computer-aided instruction, educational technology, and techniques for teaching foreign languages and basic information (e.g., WATTOO). (PsycINFO Database Record (c) 2010 APA, all rights reserved)     

浅谈在专业课程教学中如何落实应用型人才的培养目标

围绕＂有必要的理论知识,较强的实践技能和良好的职业素养＂的应用型人才的培养目标,结合《高分子材料成型加工原理》课程教学实际情况,从课前准备、教学实施及课后评价三个环节论述了切实提高学生的应用能力的方法。     

脱墨剂的起泡性能及其泡沫稳定性

对表面活性剂的起泡性能和泡沫稳定性进行了研究,研究结果表明,单一表面活性剂中起泡效果最好的是LCS;而2种表面活性剂复配后起泡效果最好的是m(LWE-7)∶m(LCS)=1∶2以及m(WNL-9)∶m(LCS)=1∶2。     

Examining age differences in performance of a complex information search and retrieval task.

This study examined age differences in performance of a complex information search and retrieval task by using a simulated real-world task typical of those performed by customer service representatives. The study also investigated the influence of task experience and the relationships between cognitive abilities and task performance. One hundred seventeen participants from 3 age groups, younger (20–39 years), middle-aged (40–59 years), and older (60–75 years), performed the task for 3 days. Significant age differences were found for all measures of task performance with the exception of navigational efficiency and number of problems correctly navigated per attempt. There were also effects of task experience. The findings also indicated significant direct and indirect relations between component cognitive abilities and task performance. (PsycINFO Database Record (c) 2010 APA, all rights reserved)